An ultrasonically bonded permanent node comprises at least one feeder, a plurality of parallel conductors physically and electrically coupled to the feeder by ultrasonic bonding to form the node and an encasement positioned over the node to reduce and prevent electric flow outwardly from the node. The ultrasonic bonding allows physical and electrical coupling of the at least one feeder having a large size relative to the plurality of parallel conductors having a small size. A method for coupling the plurality of parallel conductors with the feeder comprises the steps of: removing the insulation of the feeder and each of the plurality of parallel conductors. Ultrasonically bonding the conductor of the feeder and the plurality of parallel conductors to create a node and positioning an encasement over the node to provide insulation to the exposed conductors.

An insulated electric wire includes a flat portion and a low-flatness portion along an axial direction x, having elemental wires constituting a conductor and an insulation coating being continuous with one another. An outer shape of the conductor of the flat portion in a cross-section perpendicular to the axial direction x of the insulated electric wire takes a flat shape, and an outer shape of the conductor of the low-flatness portion takes a shape with flatness lower than the flat portion. In each of the cross-sections of the conductor of the flat portion and the low-flatness portion, deformation ratios of the elemental wires from a circle at width directional end parts, which corresponds to regions facing an outer periphery of the conductor at both ends of the flat shape in a width direction, are lower than the deformation ratios of the elemental wires at a center parts of the conductor.

Provided is a current branching device for branching a current and supplying the current to a plurality of supply destinations, including a branch member welded to a main conductive wire at an intermediate portion of the main conductive wire for supplying a current to one supply destination, and at least one branch conductive wire welded to the branch member, for supplying a current to another supply destination.

A method for producing a multipolar lead comprising the steps of: providing a hollow-cylindrical inner lining having an inner lining length which corresponds to a multiple of a lead length of the lead for the medical device; providing a plurality of electrically conductive channels, wherein each of the channels is formed by at least one insulated conductor comprising an electrical conductor and an insulating layer; spirally winding the insulated conductors around the inner lining; cutting the uninsulated cable to a length which corresponds to the lead length; sheathing the uninsulated lead cable with a shrink tube; heating the shrink tube to provide an insulated lead cable; providing a plurality of electrodes; creating a plurality of contact openings near a distal end of the lead cable; and, electrically contacting the plurality of electrodes, wherein each electrode is selectively connected to at least one electrically conductive channel via contact openings.

The present disclosure relates to a glueless repeatable finger attachment apparatus and method of monitoring a fuel cell voltage comprising the same.